Photometric and Astrometric Information for Sources around HD~163296 Revealed by JWST/NIRCam Coronagraphy

TL;DR

This study uses JWST/NIRCam coronagraphy to measure the brightness and positions of background sources around HD~163296, providing valuable data for understanding the disk's extinction properties.

Contribution

First detailed measurement of background sources' contrasts and astrometry around HD~163296 using JWST/NIRCam data, aiding future disk extinction studies.

Findings

Identified multiple background sources around HD~163296.

Measured contrasts and precise astrometry of these sources.

Data will serve as a reference for future disk extinction research.

Abstract

Background stars observed through a circumstellar disk provide valuable benchmarks for investigating the disk's extinction properties. The HD~163296 system is an excellent case study due to its large disk, the clearly visible extinction effects in JWST/NIRCam data, and the presence of numerous background sources within or around its disk. We present the measured contrasts and astrometry of sources surrounding HD~163296 from Cycle~1 JWST/NIRCam coronagraphic observations, which will serve as a useful reference for future studies of the disk's extinction characteristics.